Abstract
Smoke act as an important evolutionary factor involved in post fire germination cues. In South Africa, a study on the endangered fynbos species Audouinia capitata brought attention to the role smoke plays in promoting germination. Farmers of South Africa employ conventional method of exposing seeds to smoke as it provides protection against insects and pathogens. Additionally, this technique was shown to improve seedling vigor and germination in specific plant species. By directly exposing seeds to aerosol smoke, treating them with smoke water, or using dynamic compounds extracted from smoke at varying concentrations, the potential benefits of smoke in agriculture were realized. Among these, smoke water shows convenient and promising results. One well-known seed germination agent is butenolide (3-methyl-2H furo [2,3-c]pyran-2-one), which is produced from plant-derived smoke using bioactivity-guided fractionation. Following the initial isolation of KAR1, a whole new family of plant growth regulators, named ‘karrikins’ were isolated. Glyceronitrile or cyanohydrin is another compound isolated by using bioassay which stimulates germination in species which is insensitive to karrikins. Application of smoke had found to enhance germination by breaking dormancy, increasing seedling growth and mitigating abiotic stress conditions.
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Claims 4
Claim · model-written summary
Smoke promoted germination of Audouinia capitata.
- Taxon
- Audouinia capitata
Audouinia capitatae0 - Treatment
- smokee0
- Outcome
- germinatione0
- Direction
- promotinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a study on the endangered fynbos species Audouinia capitata brought attention to the role smoke plays in promoting germination.”
Claim · model-written summary
Smoke treatment improved seedling vigor and germination in specific plant species.
- Taxon
- plant speciese0
- Treatment
- this techniquee0
- Outcome
- seedling vigor and germinatione0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“this technique was shown to improve seedling vigor and germination in specific plant species.”
Claim · model-written summary
Glyceronitrile stimulates germination in species insensitive to karrikins.
- Taxon
- speciese0
- Treatment
- Glyceronitrilee0
- Outcome
- germinatione0
- Direction
- stimulatese0
- Qualifier
- insensitive to karrikinse0
Not reportedComparator
Verbatim
e0“Glyceronitrile or cyanohydrin is another compound isolated by using bioassay which stimulates germination in species which is insensitive to karrikins.”
Claim · model-written summary
Smoke application enhanced germination and seedling growth and mitigated abiotic stress.
Not reportedComparator
Verbatim
e0“Application of smoke had found to enhance germination by breaking dormancy, increasing seedling growth and mitigating abiotic stress conditions.”
t0“Seed Enhancement”